Merge commit '2395a02497a7f25ea94b904d015034db9654d63d' as 'src/c-blosc'

src/c-blosc/.editorconfig

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+; Top-most EditorConfig file
+root = true
+
+; Global settings
+[*]
+end_of_line = LF
+indent_style = space
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+; C source files
+[*.{h,c}]
+indent_size = 2
+
+; CMake
+[CMakeLists.txt]
+indent_size = 4
+
+[*.cmake]
+indent_size = 4

src/c-blosc/.github/dependabot.yml

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+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

src/c-blosc/.github/workflows/cmake.yml

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+name: CI CMake
+on: [push, pull_request]
+jobs:
+  ci-cmake:
+    name: ${{ matrix.name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        name: [
+          Ubuntu GCC,
+          Ubuntu GCC OSB,
+          Ubuntu GCC External LZ4,
+          Ubuntu GCC External SNAPPY,
+          Ubuntu GCC External ZLIB,
+          Ubuntu GCC External ZSTD,
+          Ubuntu Clang,
+          Ubuntu Clang No SSE2,
+          Ubuntu Clang No AVX2,
+          Ubuntu Clang No AVX2 No SSE2,
+          Ubuntu Clang No LZ4,
+          Ubuntu Clang No ZLIB,
+          Ubuntu Clang No ZSTD,
+          Windows MSVC Win32,
+          Windows MSVC Win64,
+          macOS Clang,
+          macOS GCC
+        ]
+        include:
+          - name: Ubuntu GCC
+            os: ubuntu-latest
+            compiler: gcc
+
+          # Out of source build
+          - name: Ubuntu GCC OSB
+            os: ubuntu-latest
+            compiler: gcc
+            build-dir: ../build
+            build-src-dir: ../c-blosc
+
+          - name: Ubuntu GCC External LZ4
+            os: ubuntu-latest
+            compiler: gcc
+            packages: liblz4-1 liblz4-dev
+            cmake-args: -DPREFER_EXTERNAL_LZ4=ON
+
+          - name: Ubuntu GCC External SNAPPY
+            os: ubuntu-latest
+            compiler: gcc
+            packages: libsnappy-dev
+            cmake-args: -DDEACTIVATE_SNAPPY=OFF
+
+          - name: Ubuntu GCC External ZLIB
+            os: ubuntu-latest
+            compiler: gcc
+            packages: zlib1g-dev
+            cmake-args: -DPREFER_EXTERNAL_ZLIB=ON
+
+          - name: Ubuntu GCC External ZSTD
+            os: ubuntu-latest
+            compiler: gcc
+            packages: zstd libzstd-dev
+            cmake-args: -DPREFER_EXTERNAL_ZSTD=ON
+
+          - name: Ubuntu Clang
+            os: ubuntu-latest
+            compiler: clang
+
+          - name: Ubuntu Clang No SSE2
+            os: ubuntu-latest
+            compiler: clang
+            cmake-args: -DDEACTIVATE_SSE2=ON
+
+          - name: Ubuntu Clang No AVX2
+            os: ubuntu-latest
+            compiler: clang
+            cmake-args: -DDEACTIVATE_AVX2=ON
+
+          - name: Ubuntu Clang No AVX2 No SSE2
+            os: ubuntu-latest
+            compiler: clang
+            cmake-args: -DDEACTIVATE_AVX2=ON -DDEACTIVATE_SSE2=ON
+
+          - name: Ubuntu Clang No LZ4
+            os: ubuntu-latest
+            compiler: clang
+            cmake-args: -DDEACTIVATE_LZ4=ON
+
+          - name: Ubuntu Clang No ZLIB
+            os: ubuntu-latest
+            compiler: clang
+            cmake-args: -DDEACTIVATE_ZLIB=ON
+
+          - name: Ubuntu Clang No ZSTD
+            os: ubuntu-latest
+            compiler: clang
+            cmake-args: -DDEACTIVATE_ZSTD=ON
+
+          - name: Windows MSVC Win32
+            os: windows-latest
+            compiler: cl
+            cmake-args: -A Win32
+
+          - name: Windows MSVC Win64
+            os: windows-latest
+            compiler: cl
+            cmake-args: -A x64
+
+          - name: macOS Clang
+            os: macOS-latest
+            compiler: clang
+
+          - name: macOS GCC
+            os: macOS-latest
+            compiler: gcc
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install packages (Ubuntu)
+      if: runner.os == 'Linux' && matrix.packages
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y ${{ matrix.packages }}
+
+    - name: Install packages (Windows)
+      if: runner.os == 'Windows'
+      run: |
+        choco install ninja ${{ matrix.packages }}
+
+    - name: Install packages (macOS)
+      if: runner.os == 'macOS'
+      run: |
+        brew install ninja ${{ matrix.packages }}
+
+    - name: Generate project files
+      run: |
+        mkdir ${{ matrix.build-dir || '.not-used' }}
+        cd ${{ matrix.build-dir || '.' }}
+        cmake ${{ matrix.build-src-dir || '.' }} ${{ matrix.cmake-args }} -DCMAKE_BUILD_TYPE=${{ matrix.build-config || 'Release' }} -DBUILD_SHARED_LIBS=OFF -DBUILD_FUZZERS=ON
+      env:
+        CC: ${{ matrix.compiler }}
+        CFLAGS: ${{ matrix.cflags }}
+        LDFLAGS: ${{ matrix.ldflags }}
+        CI: true
+
+    - name: Compile source code
+      run: |
+        cd ${{ matrix.build-dir || '.' }}
+        cmake --build . --config ${{ matrix.build-config || 'Release' }}
+
+    - name: Run test cases
+      run: |
+        cd ${{ matrix.build-dir || '.' }}
+        ctest -C Release --output-on-failure --max-width 120

src/c-blosc/.github/workflows/fuzz.yml

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+name: CI Fuzz
+on: [push, pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'c-blosc'
+        dry-run: false
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'c-blosc'
+        fuzz-seconds: 600
+        dry-run: false
+    - name: Upload Crash
+      uses: actions/upload-artifact@v4
+      if: failure()
+      with:
+        name: artifacts
+        path: ./out/artifacts

src/c-blosc/.gitignore

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+bench/bench
+build/
+
+*.sw?

src/c-blosc/.mailmap

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+Francesc Alted <[email protected]> FrancescAlted <[email protected]>
+Francesc Alted <[email protected]> FrancescAlted <[email protected]>
+Francesc Alted <[email protected]> FrancescAlted <[email protected]>
+Francesc Alted <[email protected]> FrancescAlted <[email protected]>

src/c-blosc/ANNOUNCE.rst

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+===============================================================
+ Announcing C-Blosc 1.21.6
+ A blocking, shuffling and lossless compression library for C
+===============================================================
+
+What is new?
+============
+
+This is a maintenance release. Here, we are providing new versions of
+internal Zlib and Zstd compressors, which are now 1.3.1 and 1.5.6
+respectively.
+
+For more info, please see the release notes in:
+
+https://github.com/Blosc/c-blosc/blob/main/RELEASE_NOTES.rst
+
+
+What is it?
+===========
+
+Blosc (https://www.blosc.org) is a high performance meta-compressor
+optimized for binary data.  It has been designed to transmit data to
+the processor cache faster than the traditional, non-compressed,
+direct memory fetch approach via a memcpy() OS call.
+
+Blosc has internal support for different compressors like its internal
+BloscLZ, but also LZ4, LZ4HC, Snappy, Zlib and Zstd.  This way these can
+automatically leverage the multithreading and pre-filtering
+(shuffling) capabilities that comes with Blosc.
+
+
+Download sources
+================
+
+The github repository is over here:
+
+https://github.com/Blosc
+
+Blosc is distributed using the BSD license, see LICENSE.txt for
+details.
+
+
+Mailing list
+============
+
+There is an official Blosc mailing list at:
+
+[email protected]
+https://groups.google.com/g/blosc
+
+
+Enjoy Data!